Storage-battery plate



Nav; 23 1926.

W. H. DANIEL STORAGE BATTERY PLATE Filed March 19, 1926 Patented .'N'ov.- 23, 1.926.

UNITED STATES PATENT OFFICE.

WALTER HL DANIEL, OF MEMZPHQIS, TENNESSEE, ASSIGNOR TO WILLIAM M. COX, OF

. MEMPHIS, TENNESSEE.

STORAGEBATTERY PLATE.

Application led March 19, 1926. Serial No. 95,895.

rihis invention has general reference to plates for storage batteries, vvhetlier of the lrlant or the pasted type, Ibut relates more particularly to such plates Which are intended to have the active material applied thereto by some mechanical process, instead* of its being formed by chemical or electrochemical action, as in Plante batteries.

The principal obj ects of the present invention are to improve upon the, storage-battery plates known heretofore, by providing such a plate in Whichy (a) A greater amount of the active material may be applied to the plate than has been possible with those previously devised,

i in proportion to the size and Weight or mass of the plate;

(b) The shape and arrangement of the grill members is such that there is minimum tendency for the active material to become dislodged from the plate; 4

`(c) The grill members are so arranged and connected that breakage or other defectiveness of several thereof Will have little deleterious eifect upon the efficiency of the plate; y

(d) The plate is strengthened and stiiiened by an arrangement of grill members comprising a large number of thin flat ribs and substantially square ribs, which meet at right-angles, and others of greater crosssectional area placed diagonally thereof; and

(e)'Special provision is made for expansion and contraction of said diagonal mem' bers, Withoutlikelihood of distortion or breakage thereof, or of the marginal framework members or the small ribs.

The means by which the foregoing and other objects are accomplishe'dby my inven tion,and the manner oftheir accomplishment, readily Will be understood from the following description on reference 'to the aecompanying drawings, in which- Fig. 1 is a side elevation of a' preferred form of plate embodying my invention.

Fig. 2 is a section taken substantially on line II-II of Fig. 1.

Fig. 3 is a section taken substantially on line III-III of Fig. 1.

Fig. 4 is a fragmentary detail view of an alternate form of my improved plate, showing a differentmanner of joining the diagonal members at the centre of the plate.

Referring noW to the drawings in detail,

the framework of the plate comprises sides tending from the curved corners of the rectangular framework, are diagonal members' 10, 11, 12 and 13, one end of each of which is connected with one of said corners, While its other end is unitary with an annular portion 14 Which joins the four diagonals at the centre ofthe plate.

A series of narrow ribs 15 are arranged parallel With the sides 5 and 6 of the framework, being spaced symmetrically, of substantially the same depth as the side menibers 5 and 6 and the end members 7 and 8, and being secured to said end members and to the respective ones of the diagonal members 1U, 11, 12 and 13. Another series of ribs 16 are arranged parallel With the end members 7 and 8, preferably'being substantially square in cross-section, being secured to said end members and to the respective ones of said diagonal members, with their respective faces at angles of 45 to the plane of the face .of the plate, and being st-aggered, as indicated in Fig. Q, so that the two sides of the plate have a plurality of V- shaped grooves, the respective ones of which are interupted by the ribs 15 and by the diagonal members.

In the alternate form of the plate shown in Fig. L1, the four diagonals 17, 18, 19 and 20 are not directly connected at the centre of the plat-e, but members 17 and 19 are joined by a curved portion 21, and members 18 and 2O by a similar curved portion 2Q, said curved portions being spaced a suflicient distance apart at the centre of the plate to provide for any expected expansion' of the diagonal members. As is the case in the form of plate shown in Figs. 1 to 3, the diagonals shown in Fig. 4L are connected with both ribs 15 and ribs 16.

From the foregoing' description, it will be seen that the diagonal members 10, 11, 12

and 13 (or 17, 18, 19 and 20), not only serve ioo ribs by handling, while the paste beingv applied, or after being placed in the battery.

But still another function of said diagonals is to increase the numberof current leads fromthe ribsl and 16 to the lug 9, and thereby to increase the rapidity ofcurrent output, and to decrease the probability of current interruptions where vbreakages of'said ribs occur.

Thus, a breakage of one or moreof the ribsA 15 or 16 in one of the triangular spaces between two diagonals and a side or end member of the framework, would d0 little harm,

on account of there being three 'conductorsl (the two diagonals and the side or end mem-x ber), through one or more of whichthe current from the broken rib or ribs would be delivered to the lug 9.

Various modicatlions of'minor details of my improved storage-battery -plate doubtless readilywill suggest themselves to thoseskilled in'this art, -andvI/ therefore do not desire to have myv invention limited to the exact forms of oonstruction'or arrangements of parts that are shown and describedherem.. Havin now fully disclosed the invention,

what is c aimed is:

1. A battery-plate, comprising side and end members of substantially the same thickness, .constituting a unitary, rectangular,` skeleton frame, having solid members of substantially the same thickness and cross- A sectional area and configuration as said side and end members, connecting the diagonallyoppositecorners of said frame and autogenously joined thereto; a series of ribs, uniformly spaced apart. throughout the span vbetween the side members, connecting said' diagonals with said end frame members;

anda series of ribs-at right-angles to said lirstness, constituting a unitary, rectangular` l skeleton frame, having solid members of substantially the same thickness and cross-,

sectional area and configuration as saidside and end members, connecting the diagonallyopposite corners of said frame` and autogenously yjoined thereto; a series of uniformly-` spaced ribs of substantiallythesame depth'. as said diagonals, connecting them with 0pposite-.sides of said frame; anda series of uniformly-spaced rectangular ribs Vfof less depth than s'aid'lirst-'named ribs', 'arranged in staggered relation at right-angles thereto with,4 all of `their sidey faces at acute angles to the face of the battery-plate, and connecting said first-named ribs with said diagonals and with .the'other two opposite sides'of said framep' 3. A battery-plate, comprising side' and end members of'substantially the same thickness, constituting a unitary, rectangular, skeleton frame; solid members of substantiallythe same width and thickness ,andl crosssectional l area and configuration as said frame members, connecting the diagonallyopposite corners of said frame; thin, flat ribs, uniformly spaced apart, connecting said diagonals with said endframe members; and rectangular ribs 'of lessdepth than vsaid flat ribs, uniformly spaced apart in staggered relation at' right-angles to said fiat ribs, and connecting them with said diagon- 'als and with said side frame members, solid rectangular ribs being arrangedj`with all of their side faces at acute angles to the face of the battery-plate, said plate having an eX- pansion opening which is limited to the centre thereof,`v y

4; Av battery-plate, comprising side and end members of substantially the same cross- ,sectional area, constituting a unitary, rectangular, skeleton frame, having solid members of substantially the same vcross-sectional areal andconliguration as said frame members, connecting the diagonally-opposite corners of said frame; a series-of symmetrical ly-arranged, thin, i'lat ribs of less cross-'sectional area than said diagonals, connecting them with said end frame members; and a series of symmetrically-arranged, square ,ribs` of substantially the same cross-'sectional area as said flat ribs, Adisposed .\at `right-angles thereto with all of their side faces at acute angles to the face of. the battery-plate, and connecting said flat ribs with said diagonals ander/ith said side frame members. l ln testimony ofthe foregoing, I aix my signature.

WALTER H, DANIEL. 

